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Contract OI history

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Nov 20, 2026 EXPIRATION

SEI $57.50 Put

SEI261120P00057500

Latest saved OI70Oct 23, 2026
Last change+2vs previous saved observation
Saved market days9Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SEI $57.50 put open interest history 9 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 70350 2026-10-02: 58 OI2026-10-06: 59 OI2026-10-07: 53 OI2026-10-08: 53 OI2026-10-09: 58 OI2026-10-13: 58 OI2026-10-15: 58 OI2026-10-20: 68 OI2026-10-23: 70 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

SEI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing70+2
Oct 20, 202668+10
Oct 15, 2026580
Oct 13, 2026580
Oct 09, 202658+5
Oct 08, 2026530
Oct 07, 202653-6
Oct 06, 202659+1
Oct 02, 202658No prior observation